Next, check the list of Identity Providers (IdPs) and Service Providers (SPs) to find contact information for administrators at your organization. Ask if your organization can provide you with InCommon SSL Certificates. You may want to specify "InCommon IGTF Server Certificate" if you plan to use your certificate with XSEDE grid computing resources. Every organization has different policies for issuing certificates, so you will need to consult your organization's administrators for details.

Known External Certificate Providers

Below are listed resources for various known organizations and associated domains. This list is not exhaustive and may be expanded as new sources are found.